scholarly journals Thermochemical conversion of plant biomass in the energotechnological complex with heat recovery

2021 ◽  
Vol 41 (3) ◽  
Author(s):  
Mykola Zablodskiy ◽  
Andrii Zhyltsov ◽  
Ivan Radko ◽  
Viktor Trokhaniak ◽  
S. Pugalendhi ◽  
...  
Keyword(s):  
Heat Carrier ◽  
Energy Recovery ◽  
Plant Biomass ◽  
Thermochemical Conversion ◽  
Pressure Fields ◽  
Basic Performance ◽  
Prospective Assessment ◽  
Carrier Energy ◽  
Performance Principles ◽  
Heat Energy Recovery

Basic performance principles of the energotechnological complex used for thermochemical conversion of plant biomass with the influence of a magnetic field and high recovery of spent heat carrier energy have been developed. The concurrent saturation of a spent heat carrier in a loading bunker with the steam from humid biomass aimed at using a certain part of a spent heat carrier, which is clear from oxygen and nitrogen oxide, and moisture in thermochemical recovery has been considered as an important aspect of recuperation processes. A mathematical model has been developed and the results of numerical simulation have been presented for determining the distribution of temperature, velocity and pressure fields in a loading bunker. Prospective assessment of the engineering solutions developed for heat energy recovery of a double-flow spent heat carrier has been conducted.

Automobile based heat energy recovery systems

2021 ◽  
pp. 11-23
Author(s):  
Om Prakash ◽  
Ishan Kashyap ◽  
Ayush Kumar ◽  
Bharath Bhushan ◽  
Anil Kumar ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Energy Recovery ◽  
Fossil Fuel ◽  
Electrical Energy ◽  
Heat Energy ◽  
World Energy ◽  
Waste Energy ◽  
Heat Energy Recovery ◽  
Further Development ◽  
State Of Art

In today's world, energy-saving and waste energy recovery are an important aspect, and it is more critical in the automotive sector. This is mainly due to vehicles are running on fossil fuel. This paper presents review on state of art waste energy recovery systems for automobiles. With further development, this system has the potential in deployment in many other industries. This technology can also be used to store electrical energy which will further be helpful in both hybrid and electric vehicles.

scholarly journals Energy efficiency improvement in the system for drying baker`s yeast

2019 ◽  
Vol 38 (1) ◽  
pp. 115
Author(s):  
Aleksandar Kosta Anastasovski
Keyword(s):  
Heat Exchanger ◽  
Energy Recovery ◽  
Process Integration ◽  
Waste Heat ◽  
Heat Energy ◽  
Production Costs ◽  
Main Task ◽  
Heat Process ◽  
Heat Exchanger Networks ◽  
Heat Energy Recovery

Drying processes are one of the main consumers of heat energy in production. Any decreases in heat consumption during the drying process will considerably decrease production costs. This study analyzes the high consumption of heat in the drying of baker`s yeast. The main task is to minimize the energy demand and lower the price of the final products with partial heat recovery. These changes will require system modifications. One of the most popular and effective methods that can be used in this case is heat process integration with Pinch Technology. In this study, a reference system was simulated with a mathematical model and analyzed for waste heat streams.This paper suggests the redesigning of a drying system for production of active dry yeast.  Selected streams that satisfy conditions for heat process integration were involved in the evaluation for a better solution. Two different scenarios were proposed as possible solutions. The suggested solutions are retrofit designs of Heat Exchanger Networks. These Heat Exchanger Networks include already installed heat exchangers as well as new heat transfer units. The selection of better design was made with economic analysis of investment. The proposed scenarios of the analyzed sub-system give improvement in heat energy recovery. The best determined solution reduces the cost and thus has the highest profitability, but not the highest heat energy recovery.

Evaluation of the potential for energy recovery from olive oil industry waste: Thermochemical conversion technologies as fuel improvement methods

Fuel ◽  
2020 ◽  
Vol 279 ◽  
pp. 118536 ◽  
Author(s):  
Leonel J.R. Nunes ◽  
Liliana M.E.F. Loureiro ◽  
Letícia C.R. Sá ◽  
Hugo F.C. Silva
Keyword(s):  
Olive Oil ◽  
Energy Recovery ◽  
Oil Industry ◽  
Thermochemical Conversion ◽  
Industry Waste ◽  
Conversion Technologies

Use of a turboexpander in steam power units for heat energy recovery in heat supply systems

2016 ◽  
Vol 63 (5) ◽  
pp. 360-366 ◽  
Author(s):  
R. A. Sadykov ◽  
A. Z. Daminov ◽  
I. N. Solomin ◽  
V. A. Futin
Keyword(s):  
Energy Recovery ◽  
Heat Supply ◽  
Heat Energy ◽  
Steam Power ◽  
Heat Supply Systems ◽  
Heat Energy Recovery ◽  
Supply Systems

Evaluation of the washability characteristics of Khushab coal (Pakistani) by heavy media separation process

2017 ◽  
Vol 28 (5-6) ◽  
pp. 598-607 ◽  
Author(s):  
Hafiz Sana ◽  
Sumaira Kanwal ◽  
Javaid Akhtar ◽  
Naseer Sheikh ◽  
Shahid Munir
Keyword(s):  
Energy Recovery ◽  
Power Plants ◽  
Calorific Value ◽  
Environmental Issues ◽  
Thermochemical Conversion ◽  
Low Grade ◽  
Particle Sizes ◽  
Clean Coal ◽  
Recovery Schemes ◽  
Combustion Technique

The use of high-sulfur Pakistani coals can cause serious problems of slagging and fouling in thermochemical conversion reactors along with environmental issues like acid rain, etc. In this study, a pre-combustion technique, namely heavy media separation, is employed for the cleaning of low-grade Pakistani coal. Six crushed coal samples of different particle sizes were individually subjected to heavy media solutions of ZnCl2 of different specific gravities. It was found that the sample with a particle size of −6.25+4 mm at specific gravity of 1.4 produced the optimum float product as clean coal, showing 83.53% yield of clean coal with 1.24% ash and 1.0% sulfur contents. An overall reduction of 91.68% in ash and 86.11% sulfur contents was obtained. Moreover, up to 19.3% enhancement of gross calorific value was achieved. The resultant clean coal can be used in various energy recovery schemes in Pakistan such as coal-fired power plants and cement industries.

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